{"paper":{"title":"Mass-Imbalanced Ionic Hubbard Chain","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Dionys Baeriswyl, George I. Japaridze, Luka Jibuti, Michael Sekania","submitted_at":"2017-04-24T20:34:43Z","abstract_excerpt":"A repulsive Hubbard model with both spin-asymmetric hopping (${t_\\uparrow\\neq t_\\downarrow}$) and a staggered potential (of strength $\\Delta$) is studied in one dimension. The model is a compound of the mass-imbalanced (${t_\\uparrow\\neq t_\\downarrow}$, ${\\Delta=0}$) and ionic (${t_\\uparrow = t_\\downarrow}$, ${\\Delta>0}$) Hubbard models, and may be realized by cold atoms in engineered optical lattices. We use mostly mean-field theory to determine the phases and phase transitions in the ground state for a half-filled band (one particle per site). We find that a period-two modulation of the parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07459","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}